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#include <arch/types.h>
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#include <arch/types.h>
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#include <typedefs.h>
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#include <typedefs.h>
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#include <preemption.h>
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#include <preemption.h>
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#include <arch/atomic.h>
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#include <arch/atomic.h>
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#include <debug.h>
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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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struct spinlock {
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struct spinlock {
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#ifdef CONFIG_DEBUG_SPINLOCK
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#ifdef CONFIG_DEBUG_SPINLOCK
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    char *name;
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    char *name;
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        .val = { 0 }        \
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        .val = { 0 }        \
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    }
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    }
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#endif
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#endif
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extern void spinlock_initialize(spinlock_t *sl, char *name);
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extern void spinlock_initialize(spinlock_t *sl, char *name);
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extern void spinlock_lock(spinlock_t *sl);
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extern int spinlock_trylock(spinlock_t *sl);
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extern int spinlock_trylock(spinlock_t *sl);
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extern void spinlock_unlock(spinlock_t *sl);
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extern void spinlock_lock_debug(spinlock_t *sl);
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#ifdef CONFIG_DEBUG_SPINLOCK
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#  define spinlock_lock(x) spinlock_lock_debug(x)
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#else
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#  define spinlock_lock(x) atomic_lock_arch(&(x)->val)
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#endif
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/** Unlock spinlock
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 *
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 * Unlock spinlock.
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 *
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 * @param sl Pointer to spinlock_t structure.
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 */
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static inline void spinlock_unlock(spinlock_t *sl)
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{
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    ASSERT(atomic_get(&sl->val) != 0);
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    /*
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     * Prevent critical section code from bleeding out this way down.
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     */
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    CS_LEAVE_BARRIER();
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    atomic_set(&sl->val,0);
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    preemption_enable();
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}
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#else
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#else
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/* On UP systems, spinlocks are effectively left out. */
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/* On UP systems, spinlocks are effectively left out. */
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#define SPINLOCK_DECLARE(name)
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#define SPINLOCK_DECLARE(name)